Air Pressure Switch, Application Commercial HVAC, Air Filtration, Furnace Control, Humidity Detection and Control, Residential HVAC, Contact Form SPDT, Electrical Connection Type Plug-In, Electrical Rating 1/10 hp @ 120 to 277V AC, 125 VA Pilot Duty @ 120V AC, 28 VA Pilot Duty @ 24V AC, Housing Material Polyethelene, Housing Type Standard Housing, Input Voltage 120V AC, Maximum Differential Pressure Setting 0.5 in wc, Maximum Operating Temperature 190 Degrees F, Maximum Pressure Rating 1 in wc